public function deleteDBSnapshot($dBSnapshotIdentifier)
{
$result = null;
$options = array('DBSnapshotIdentifier' => (string) $dBSnapshotIdentifier);
$action = ucfirst(__FUNCTION__);
$response = $this->client->call($action, $options);
if ($response->getError() === false) {
$sxml = simplexml_load_string($response->getRawContent());
if (!$this->exist($sxml->{$action . 'Result'})) {
throw new RdsException(sprintf(self::UNEXPECTED, $action));
}
$ptr = $sxml->{$action . 'Result'};
$result = $this->_loadDBSnapshotData($ptr->DBSnapshot);
}
return $result;
}